7628189 has 8 divisors (see below), whose sum is σ = 8355960. Its totient is φ = 6931456.

The previous prime is 7628183. The next prime is 7628191. The reversal of 7628189 is 9818267.

It can be written as a sum of positive squares in 4 ways, for example, as 1844164 + 5784025 = 1358^2 + 2405^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7628189 - 2¹² = 7624093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7628183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244 + ... + 8229.

It is an arithmetic number, because the mean of its divisors is an integer number (1044495).

Almost surely, 2^7628189 is an apocalyptic number.

It is an amenable number.

7628189 is a deficient number, since it is larger than the sum of its proper divisors (727771).

7628189 is a wasteful number, since it uses less digits than its factorization.

7628189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15519.

The product of its digits is 48384, while the sum is 41.

The square root of 7628189 is about 2761.9176309224. The cubic root of 7628189 is about 196.8522946520.

The spelling of 7628189 in words is "seven million, six hundred twenty-eight thousand, one hundred eighty-nine".